Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Ilapa, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar


mindat Locality ID: 27796
mindat URL: http://www.mindat.org/loc-27796.html

Tectonic Settings:

Total number of sublocalities beneath "Ilapa, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar": 2
Total number of bottom-level sublocalities: 3

Latitude: 20°2'57"S
Longitude: 46°56'52"E
Decimal Degree (lat, lon): -20.049166666667,46.947777777778
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al B Be Ce F Fe H Li Mg Mn Na Nb O P Si Sn Ta Ti Zr 

Elements from minerals reported directly at this locality: Al B Be Ce F Fe H Li Mg Mn Na Nb O P Si Sn Ta Ti Zr 

Structural Groups for minerals in this locality: 
BerylChloriteClayColumbiteCorundumDiasporeGarnetMonaziteNonePyroxene
QuartzRutileSmectite-vermiculiteSpinelTopazTourmalineZircon

19 IMA Minerals at location:
Beryl  (*)Cassiterite  (*)Columbite-(Fe)  (*)Cookeite  (*)Dravite  (*)
Elbaite  (*)Goethite  (*)Hematite  (*)Ixiolite  (*)Magnetite  (*)
Monazite-(Ce)  (*)Quartz  (*)Rutile  (*)Schorl  (*)Spessartine  (*)
Spodumene  (*)Topaz  (*)Vermiculite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Beryl  (*)BerylBe3Al2Si6O1804286
Cassiterite  (*)RutileSnO205171
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O60518
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)80181
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)0648
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)0520
Goethite  (*)DiasporeFeO(OH)07437
Hematite  (*)CorundumFe2O3014640
Ixiolite  (*)Columbite(Ta2/3Mn2+1/3)O20148
Magnetite  (*)SpinelFe2+Fe3+2O4014899
Monazite-(Ce)  (*)MonaziteCe(PO4)0945
Quartz  (*)QuartzSiO2061156
Rutile  (*)RutileTiO205614
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)02705
Spessartine  (*)GarnetMn2+3Al2(SiO4)301214
Spodumene  (*)PyroxeneLiAlSi2O60688
Topaz  (*)TopazAl2SiO4F201476
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O0652
Zircon  (*)ZirconZr(SiO4)05251


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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